Book Image

Modular Programming with JavaScript

Book Image

Modular Programming with JavaScript

Overview of this book

Programming in the modular manner is always encouraged for bigger systems—it is easier to achieve scalability with modular programming. Even JavaScript developers are now interested in building programs in a modular pattern. Modules help people who aren’t yet familiar with code to find what they are looking for and also makes it easier for programmers to keep things that are related close together. Designing and implementing applications in a modular manner is highly encouraged and desirable in both simple and enterprise level applications. This book covers some real-life examples of modules and how we can translate that into our world of programming and application design. After getting an overview of JavaScript object-oriented programming (OOP) concepts and their practical usage, you should be able to write your own object definitions using the module pattern. You will then learn to design and augment modules and will explore the concepts of cloning, inheritance, sub-modules, and code extensibility. You will also learn about SandBoxing, application design, and architecture based on modular design concepts. Become familiar with AMD and CommonJS utilities. By the end of the book, you will be able to build spectacular modular applications in JavaScript.
Table of Contents (17 chapters)
Modular Programming with JavaScript
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
2
Review of Important JavaScript OOP Concepts
Index

Tight augmentation of modules


So far in this chapter, we have talked about what module augmentation is in general and have also covered the loose augmentation technique. It is time to explore a different technique used in augmenting modules, known as tight augmentation.

You might wonder if tight augmentation is the opposite of loose augmentation, and you are correct to think that, but with a couple of considerations which we will talk about a little later.

Tight augmentation is used for adding properties (functionality) to our modules when we do want to enforce a set order of file loading and code execution, and therefore it is less flexible. This type of augmentation is usually used when we need to make sure that a certain property from the original module is available for our augmenting code.

Tight augmentation of ImagesInc_GlobalData

Consider our augmenting code for ImagesInc_GlobalData module from the previous section, when loose augmentation was being used. As mentioned previously, since...